Apparatus for centering symmetrical metal pieces.



K. A. SODERSTROM.

APPARATUS FOR (ENTERING SYMMETRIGAL METAL PIECES APPLICATION FILED NOV.so, 1908.

927,890. Patented July 13,1909.

A UNITED STATES PATENT ornron KARL ADOLF SODERSTROM, OF PHILADELPHIA,PENNSYLVANIA, ASSIGNOR TO MIDVALE STEEL COMPANY, OF PHILADELPHIA,PENNSYLVANIA, A CORPORATION OF PENNSYL- VAN IA.

APPARATUS FOR CENTERING SYMMETRIGAL METAL PIECES.

To all whom it may concern:

Be it known that I, KAnL ADOLF SoDEn- STROM, a citizen of the UnitedStates, residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement in Apparatusfor Centering Symmetrical Metal Pieces, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, which form a part of this specification.

My apparatus is adapted for the purpose of centering pieces.

I will now describe the embodiment of my apparatus illustrated in theaccompanying drawings, in which Figure 1 is a cross section on lines 11,Fig. 2. Fig. 2 is aplan view of the apparatus.

a is the bottom die of the formative press and b the top die. I

c is the billet or slice from billet to be acted on in the formativepress.

65 are levers, three being shown. These levers have the inner ends orpoints offset with respect to the outer ends. The outer end of theselevers are each pivotally mounted upon a vertical pin 9 in the bed plateh of the machine. The length of these levers is, as shown in thedrawings, greater than the distance from the pivot to the centeringpoint.

i is a ring mounted upon the rollers 7c resting upon the bed plate ofthe machine. The outer edge of this ring rests in the grooves in therollers Z mounted upon the pins 9. These rollers are above the pivotalconnection of the levers with the pins. The off-setting of the levers (1enables the outer ends of the levers to be in a lower plane than thering i, while the inner ends of the levers are in a plane above thering. The inner portion of each lever (1 passes under strap n having adownwardly projecting pin 0. The strap a has passing through it the studg by which it is connected to ring i. Upon this stud g is the roller rin line with lever (Z.

s is an operating handle connected to ring a.

The billet c is placed upon the lever die and the ring rotated by meansof the handle which causes the inner ends or points of the levers tomove toward the center of the lower die embracing the billet betweenthem. When they have moved inward to their ultimate position, as shownin dotted lines, Fig. 2, the billet c embraced between them Wlll beSpecification of Letters Patent.

Application filed November 30, 1908.

Patented July 13, 1909.

Serial No. 465,203.

centrally disposed of with respect to the formative dies. In all casesthree points or levers should be the minimum used and for pieces havinga greater number of faces than three the number of points or levers usedshould be equal to a divisor of the number of sides if that divisor begreater than three.

As I stated, I do not intend to limit my invention to the manufacture ofany particular article or for acting upon any particular shaped metallicpiece.

Having now fully described my invention, what I claim and desire toprotect by Letters Patent is 1. An apparatus for centering pieces, comprising, in combination, a plurality of lovers movable toward and fromthe centering point of the piece, the length of said levers beinggreater than the distance between the point on which said levers moveand the centering point, and means to move said levers simultaneouslyand synchronously.

2. An apparatus for centering pieces, having a plurality of faces,comprising, in combination, a plurality of lovers, not less than threeand if greater in number, a divisor of the number of faces of the piece,movable toward and from the centering point of the piece, and means tomove said levers simultaneously and synchronously.

3. An apparatus for centering pieces, c01nprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring rotatably mounted, loose connection between said ring andlevers, grooved rollers, in the groove of which the outer edge of saidring rests and is guided.

4. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring, said. levers being offset so that one portion restsbeneath and the other portion above said ring, loose connections betweensaid ring, and the portions of the le vers above said ring, whereby inthe rotation of said ring in one direction said lovers are moved inward,and in the rotation of the ring in the opposite direction are movedoutward, the points of said levers being at the portion below said ring.

5. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon. which said levers are pivoted toswing, a ring, said levers being offset so that one portion restsbeneath and the other portion above said ring, means in the rotation ofsaid ring in one direction to move said levers in one direction and inthe opposite rotation of the ring in the opposite direction, the pointsof said levers being at the portion below said ring.

6. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring, said levers being offset so that one portion restsbeneath and the other portion above said ring, loose connections betweensaid ring and the portions of the levers above said ring, adapted in therotation of the ring in one direction to move said levers inward, and inthe rotation of the ring in the opposite direction to move said leversoutward, the points of said levers being at the portion below said ring,grooved rollers, in the groove of which the outer edge of said ringrests.

7. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring, said levers being offset so that one portion restsbeneath and the other portion above said ring, means in the rotation ofsaid ring in one direction to move said levers in one direction and inthe opposite rotation of the ring in the opposite direction, the pointsof said levers being at the portion below said ring, grooved rollers, inthe groove of which the outer edge of said ring rests.

8. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring, said levers being offset so that one portion restsbeneath and the other portion above said ring, loose connections betweensaid ring and the portions of the levers above said ring, adapted in therotation of the ring in one direction to move said levers inward, and inthe rotation of the ring in the opposite direction to move said leversoutward, the points of said levers being at the portion below said ring,grooved rollers, in the groove of which the outer edge of said ringrests and rollers upon which said ring is mounted.

9. An apparatus for centering pieces, comprising, in combination, aplurality of levers, a support upon which said levers are pivoted toswing, a ring, said levers being offset so that one portion restsbeneath and the other portion above said ring, means in the rotation ofsaid ring in one direction to move said levers in one direction and inthe opposite rotation of the ring in the opposite direction, the pointsof said levers being at the portion below said ring, grooved rollers, inthe groove of which the outer edge of said ring rests and rollers uponwhich said ring is mounted.

10. An apparatus for centering pieces,

having a plurality of faces, comprising, in

combination, a plurality of levers equal or proportionate in number tothe number of faces of the piece, movable toward or from the centeringpoint of the piece, and means to move said levers simultaneously andsynchronously.

In testimony of which invention, I have hereunto set my hand, atPhiladelphia, on this 27th day of November, 1908.

KARL ADOLF SODERSTROM.

Witnesses:

M. M. HAMILTON, A. M. URIAN.

